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questions :Spring Steel
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[Visitor (58.214.*.*)]answers [Chinese ]Time :2022-11-20
Spring steel refers to steel that is specifically used to manufacture springs and elastic elements due to its elasticity in the quenched and tempered state. The elasticity of steel depends on its ability to deform elastically, that is, within the specified range, the ability to deform elastically makes it withstand a certain load, and no permanent deformation occurs after the load is removed.
Spring steel should have excellent comprehensive properties, such as mechanical properties (especially elastic limit, strength limit, yield ratio), elasticity reduction performance (that is, elastic reduction performance, also known as relaxation resistance), fatigue performance, hardenability, physical and chemical properties (heat resistance, low temperature resistance, oxidation resistance, corrosion resistance, etc.). In order to meet the above performance requirements, spring steel has excellent metallurgical quality (high purity and uniformity), good surface quality (strict control of surface defects and decarburization), accurate shape and size.
According to the GB/T 13304 "Steel Classification" standard, according to the basic properties and use characteristics of one, spring steel belongs to the steel used for mechanical structure; According to the quality grade, it belongs to special quality steel, that is, steel that requires special strict control of quality and performance during the production process. According to Chinese customs, spring steel belongs to special steel, the technical requirements when making spring steel are relatively high, and the excellent technology directly determines the quality.
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